Home / 13,260.08-19,890.86-4,375.06

Finding the Fourth Proportional to 13,260.08, 19,890.86 and 4,375.06

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Solution

The fourth proportional to 13,260.08, 19,890.86 and 4,375.06 is: 6,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.08 : 19,890.86 = 4,375.06 : x
  2. Step 2: Convert to fraction form
    13,260.08/19,890.86 = 4,375.06/x
  3. Step 3: Cross multiply
    13,260.08x = 19,890.86 × 4,375.06
  4. Step 4: Simplify right side
    13,260.08x = 87,023,705.95
  5. Step 5: Solve for x
    x = 87,023,705.95/13,260.08
  6. Step 6: Final answer
    x = 6,562.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.